While I was leaning upon my shovel-handle and recovering my breath, I heard some light-footed creature tripping over the leaves above me just out of view, which I fancied might be a squirrel. Presently I heard the bay of a hound and the yelp of a cur, and then knew that a rabbit had passed near me. The dogs came hurrying after, with a great rumpus, and then presently the hunters followed. The dogs remained barking not many rods south of me on the edge of the swamp, and I knew the rabbit had run to hole. For half an hour or more I heard the hunters at work there, digging their game out; then they came along and discovered me at my work. (An old trapper and woodsman and his son.) I told them what I was in quest of. "A mountain weasel," said the old man. "Seven or eight years ago I used to set deadfalls for rabbits just over there, and the game was always partly eaten up. It must have been this weasel that visited my traps." So my game was evidently an old resident of the place. This swamp, maybe, had been his hunting-ground for many years, and he had added another hall to his dwelling each year. After further digging, I struck at least one of his banqueting halls, a cavity about the size of one's hat, arched over by a network of fine tree-roots. The occupant evidently lodged or rested here also. There was a warm, dry nest, made of leaves and the fur of mice and moles. I took out two or three handfuls. In finding this chamber I had followed one of the tunnels around till it brought me within a foot of the original entrance. A few inches to one side of this cavity there was what I took to be a back alley where the weasel threw his waste; there were large masses of wet, decaying fur here, and fur pellets such as are regurgitated by hawks and owls. In the nest there was the tail of a flying squirrel, showing that the weasel sometimes had a flying squirrel for supper or dinner. I continued my digging with renewed energy; I should yet find the grand depot where all these passages centred; but the farther I excavated, the more complex and baffling the problem became; the ground was honeycombed with passages. What enemy has this weasel, I said to myself, that he should provide so many ways of escape, that he should have a back door at every turn? To corner him would be impossible; to be lost in his fortress were like being lost in Mammoth Cave. How he could bewilder his pursuer by appearing now at this door, now at that; now mocking him from the attic, now defying him from the cellar! So far, I had discovered but one entrance; but some of the chambers were so near the surface that it looked as if the planner had calculated upon an emergency when he might want to reach daylight quickly in a new place.